Mayoki 3Gal Backpack Sprayer DEWALT 20V Compatible — 3-Gallon Battery-Powered, Up to 79 PSI

Mayoki's 3-gallon backpack sprayer is a DEWALT 20V-compatible, battery-powered sprayer delivering adjustable pressure up to 79 PSI for gardening, fertilizing, and general property care without manual pumping.

This lightweight backpack sprayer pairs with DEWALT 20V MAX batteries and includes a 2.0Ah battery plus 2A fast charger, so you can cover large areas without constant recharging or hand-pumping. Its translucent 3-gallon tank and ergonomic backpack harness make it easy to see fluid levels and stay comfortable during extended use. Built-in low-voltage protection helps preserve battery life while multiple nozzle options and two wand materials make the unit versatile for tasks from delicate nematode applications to high-pressure surface rinsing.

How does this battery sprayer save time and effort?

The motorized pump eliminates repetitive manual pumping, and the lock-on trigger supports continuous spraying to reduce hand fatigue. On a single 2.0Ah DEWALT 20V charge you can spray roughly 33 gallons (about eleven full tanks), which reduces interruptions for recharging during larger jobs.

• Electric pump with up to 79 PSI for steady output
• Lock-on trigger for continuous flow without holding the handle
• Includes 2.0Ah battery and 2A charger for quick recharge cycles
• Translucent tank shows fluid level at a glance to plan refills

What pressure and nozzle options are available for different tasks?

Pressure is adjustable up to 79 PSI with a flow of approximately 0.33 GPM and a spray reach up to 25 feet, so you can match output to the job — from low-pressure nematode or fertilizer application to higher-pressure cleaning or bleach spray. The kit ships with seven interchangeable nozzles plus two wands (stainless steel and plastic) to tailor spray pattern and resistance to clogging.

• Adjustable pressure range up to 79 PSI with low-pressure 45 PSI mode
• Seven nozzle tips including brass 1.58 mm and plastic 2.0 mm options
• Two wand types: stainless steel for durability, plastic for lightweight tasks
• Effective spray reach up to 25 feet for tall plants or hard-to-reach areas

How comfortable and durable is the unit for frequent use?

The backpack frame features extra-wide padded shoulder straps and a ventilated back pad to reduce heat and strain during longer shifts. Components are factory-tested for leaks, and the sprayer includes low-voltage protection to prevent battery over-discharge, extending both sprayer and battery lifespan.

• Padded straps and ventilated back pad for reduced shoulder fatigue
• Translucent 3-gallon tank for easy monitoring of contents
• Built-in low-voltage cut-off at 14.4V to protect batteries
• Factory leak-tested with lifetime component support and 5-year warranty

What maintenance, support, and chemical compatibility should I expect?

Mayoki provides lifetime component support and a five-year warranty; the company also offers part replacements if components arrive damaged or degrade due to extreme conditions. The supplied large-aperture nozzles reduce clogging risk, making the unit compatible with materials like beneficial nematodes when used according to product instructions and nozzle selection.

• Lifetime parts support and 5-year warranty for peace of mind
• Large-aperture nozzles (1.58 mm brass, 2.0 mm plastic) minimize clogs
• Factory-tested for leaks; customer service available within 24 hours
• Avoid exposing plastic parts to extreme cold during shipping or storage

Who is this for: The Mayoki 3Gal battery backpack sprayer is designed for homeowners, landscapers, and small-farm operators who need a portable, pump-free sprayer that pairs with DEWALT 20V batteries. It's a strong fit for anyone applying fertilizers, pesticides, beneficial nematodes, or disinfectants across yards, gardens, greenhouses, and small properties who values adjustable pressure, ergonomic carry, and reliable manufacturer support.